Recent content by udayag

hi friends I am going to buy optical chopper system for my work. But i need some clarification about system. If i want to chop say 2mm diameter of the beam, say it has of chopping frequency from 500Hz to 1000Hz. What is the difference if i chop at 500Hz and 900 Hz except the frequency...

hi to alll I am new to this forum. I have small doubt regarding converging light beam. I have highly diverge light beam of diameter of 1cm. I want to focus or converge the light beam with the distance of 20cm.How can i achieve maximum focus without much loss? which type of lens shall i use...